Vibrating Bed and Airflow for Additive Build Material Extraction
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Solution Overview
Problem
Current additive manufacturing processes face inefficiencies in recycling non-solidified build material, requiring extensive post-processing and relying on either vibration or airflow alone, which are not optimal for complete removal and re-use.
Innovation Solution
An additive manufacturing platform that combines a vibrating bed with a vacuum system and airflow to efficiently separate and recycle non-solidified build material through different extraction modes based on build material properties and sensitivity, using a controller to adjust vibration and airflow parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If vibration alone is used for build material extraction, then the extraction process is simple, but the removal of non-solidified material is incomplete
Solution Approach 1:
The patent combines vibration extraction and airflow extraction into a unified system. The vibration mechanism loosens and separates non-solidified build material from the printed object, while the airflow system simultaneously or subsequently removes the loosened material through suction. This merging of two extraction methods achieves complete material removal while maintaining operational simplicity.
2Ease of manufacture
If airflow alone is used for build material extraction, then the extraction process is simple, but the separation of non-solidified material is insufficient
Solution Approach 1:
The system integrates vibration extraction and airflow extraction where each method compensates for the other's limitations. Vibration provides mechanical separation that loosens adhered material, while airflow provides suction that removes the loosened material. The combination achieves effective separation that neither method could accomplish alone.
3Loss of substance
If extensive post-processing is used for material recycling, then material re-use is achieved, but the overall process efficiency decreases
Solution Approach 1:
The vibration and airflow extraction system performs preliminary separation of non-solidified build material immediately after the printing process, before any post-processing steps are required. By automatically removing and collecting the loose material in a controlled manner, the system eliminates the need for extensive manual post-processing, thereby maintaining high material recycling rates while preserving process efficiency.
4Device complexity
If single-mode extraction is used, then the device complexity is low, but the extraction effectiveness for different material properties is reduced
Solution Approach 1:
The system incorporates multiple extraction modes (vibration-only, airflow-only, and combined vibration-airflow) that can be dynamically selected based on the specific build material properties and printing requirements. This dynamic configuration allows the same device to effectively handle different material types (powders, pastes, resins) without increasing fundamental device complexity, as the modes can be controlled through software parameters.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances the recycling of non-solidified build material, reduces post-processing needs, and optimizes the use of both vibration and airflow, improving the efficiency of the additive manufacturing process.
Implementation Method 1
a vibrating bed on which a volume of build material is to be disposed. The vibrating bed vibrates to remove excess build material
Implementation Method 2
a vacuum system to draw non-solidified build material from the chamber to a reservoir
Data Source
AI summary
In one example in accordance with the present disclosure, an additive manufacturing platform is described. The additive manufacturing platform includes a vibrating bed on which a volume of build material is to be disposed. The bed is to vibrate to remove excess build material and operates in at least two extraction modes during a build material extraction period. The additive manufacturing platform also includes a non-vibrating frame to support the vibrating bed.